TY  - BOOK
AU  - Malitao, Arnel L.
TI  - Essential logic
SN  - 9710863835
U1  - FIL 160 M251e 2003 
PY  - 2003///
CY  - Mandaluyong City
PB  - National Book Store
KW  - Logic
KW  - Problems, exercises, etc
KW  - Symbolic Logic
KW  - Fallacies
N1  - Includes bibliography
ER  -